Final answer:
Radicals are most likely to be described as very far left supporters, as they typically advocate for substantial changes in the political and economic systems, which may include socialist or communist ideologies.
Step-by-step explanation:
Those who could be described as very far left supporters are typically associated with more extreme social and economic ideas that go beyond mainstream progressive agendas. In the list provided, the radicals would most closely align with this characterization. Radicals often seek fundamental changes in social, economic, and political structures, potentially advocating for revolutionary, socialist, or communist ideologies. This is in contrast to liberals who generally support progressive reforms within the existing political system. Conservatives, on the other hand, tend to favor maintaining traditional institutions and are more likely to resist radical changes, focusing instead on individual liberty, free markets, and a smaller government role in social welfare programs, as seen in the ideologies of the New Right.